St Stable Range; Manual Setup - Omron E5CN User Manual

Determining PID Constants (AT, ST, manual setup)
3-8-4

ST stable range

Operation Procedure
1,2,3...
Advanced function setting level
ST stable range
3-8-5

Manual setup

Operation Procedure
1,2,3...
Adjustment level
AT execute/
cancel
Proportional
band
Integrated
time
Derivative
time
Proportional Op-
eration
The ST stable range is a condition for determining the conditions under which
ST (self-tuning) functions.
In this example, let's set the ST stable range to 20 ° C.
1. Select the "ST stable range" parameter by pressing the
vanced function setting level".
To move to this level, see "4.8 To Move to the Advanced Function Setting
Level".
2. Set to 20 ° C (deviation) using the
The individual PID constants can be manually set in the "Proportional band",
"integral time", and "Derivative time" parameters in the "adjustment level".
In this example, let's set the "proportional band" parameter to "10.0", the "inte-
grated time" parameter to "250" and the "derivative time" parameter to "45".
1. Press the key to move from the "operation level" to the "adjustment
level".
2. Select "proportional band" by pressing the
3. Press the or
4. Select "integrated time" by pressing the
5. Press the or
6. Select "derivative time" by pressing the
7. Press the or
8. To return to the "operation level," press the
When PID constants I (integral time) and D (derivative time) are set to "0", control is
executed according to proportional operation. The default set point becomes the
center value of the proportional band.
Related parameter
"manual reset value" (adjustment level)
key.
key to set the parameter to "10.0".
key.
key to set the parameter to "250".
key.
key to set the parameter to "45".
Section 3-8
key in the "ad-
key
key.
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